Hair straightening device



FIG. 1 is a front, top and left side perspective view of a hair straightening device showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross-sectional view taken on line 8--8 of FIG. 2. 

The ornamental design for a hair straightening device, as shown. 